CA1297833C - Bituminous roof sheeting - Google Patents
Bituminous roof sheetingInfo
- Publication number
- CA1297833C CA1297833C CA000548479A CA548479A CA1297833C CA 1297833 C CA1297833 C CA 1297833C CA 000548479 A CA000548479 A CA 000548479A CA 548479 A CA548479 A CA 548479A CA 1297833 C CA1297833 C CA 1297833C
- Authority
- CA
- Canada
- Prior art keywords
- bitumen
- sheeting
- roof sheeting
- roof
- bituminous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010426 asphalt Substances 0.000 claims abstract description 27
- 230000005855 radiation Effects 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- 239000008199 coating composition Substances 0.000 claims abstract description 12
- 239000005060 rubber Substances 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000004831 Hot glue Substances 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 229920006037 cross link polymer Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010454 slate Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2813—Heat or solvent activated or sealable
- Y10T428/2817—Heat sealable
- Y10T428/2826—Synthetic resin or polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2848—Three or more layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31641—Next to natural rubber, gum, oil, rosin, wax, bituminous or tarry residue
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31815—Of bituminous or tarry residue
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2369—Coating or impregnation improves elasticity, bendability, resiliency, flexibility, or shape retention of the fabric
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2738—Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Textile Engineering (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Paints Or Removers (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Body Structure For Vehicles (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Cultivation Of Seaweed (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A roof sheeting having an extraordinarily large plasticity range based on elastomer-modified bitumen is obtained with a coating composition from a bitumen/rubber mix-ture in the ratio of 17:3 to 19:1 after the finished sheeting has been irradiated with a radiation dose of between 6 and 16 x 104 Gy.
A roof sheeting having an extraordinarily large plasticity range based on elastomer-modified bitumen is obtained with a coating composition from a bitumen/rubber mix-ture in the ratio of 17:3 to 19:1 after the finished sheeting has been irradiated with a radiation dose of between 6 and 16 x 104 Gy.
Description
~Z~7~3 The present invention relates to a bituminous roof sheeting modified with polymers.
situminous sheetings for sealing roofs comprise a base material, which, when re~uire~, :Is impregnated, such as sheets, fleeces or fabrics, and is coated wlth a bituminous coating composition at least on one side. The surface of the coating composition is provided with a parting agent which prevents the sheeting from adhering upon being rolled up and, when required, also can carry out other functions, as for example, the protection against ultraviolet radiation ln the uppermost layer of the roof sealing.
To improve the mechanical properties, the bituminous coating compositions are modified with bitumen-compatible polymers. They cause an increase of the plasticity range and of the viscosity of the melt. The addition of rubber and rub~
ber-like polymers simultaneously causes an improvement of the cold flexibility in addition to the increase of the softening point. Furthermore, the elasticity of the bituminous sub-stance is also increased. The lower resistance to aging of20 these double bond-containing polymers, particularly to UV
radiation, is a disadvantage. The addition of polyolefins, such as polyethylene, has a more favourable effect on the aging characteristics but an improvement of the cold flex-ibility is usually not attained and moreover the elasticity ls improved only slightly. The elasticity range of polymer bltu-men modified with elastomers lies approximately between 125 and -35C and for polymer bitumen modified wlth olefins it lies between approximately 150 and -15C, i.e., it is approxi-mately the same but shifted by approximately 25K. For the selection of a roof sea~ing sheeting this is just as important as the adhesive and welding characteristics or the resistance to chemicals and aging.
~k DD 215559 (Published 14th November 1984) proposes to improve the natural stability of bitumen mixtures by additions of radiation-cross-linked polymers, particularly of polyethylene, also at elevated temperatures. The degree of cross-linkage must be so selected that an adequate solubility of the cross-linked polymer in the bitumen is still attained since intensely cross-linked polymers must be regarded as fillers, which only slightly chan~e the properties of the bituminous substances. The molar weight of the polymer is increased by the cross-linkage. As is well known, this has a positive effect on the softening point but a negative effect on both the breaking point and the penetration : ref;
Polymermodifizierte Bitumen, Eigenschaften - Herstellung -PrUfungsmethoden - Anwendung, Authors: Walter FUrst and Friedrich Crott, Date: 1986, Source: Stra~e und Autobahn (journal) issue 1, pages 3 to 9.
As is evident from the description the bitumen mixtures according to the present invention are intended primarily for road construction. This is also evident from the selection of bitumens in the Examples which names the bitumen types B
50 and B 80, which are unsuitable as roof sheeting coating compositions.
Thus, the present invention provides a roof sheeting that is resistant to aging and is not- and cold~sealing with ~5 bituminous adhesive substances and has an extended plasticity range including that of the bitumen modified with polyolefin and that modified with rubber.
According to the present invention there is provided a roof sheeting comprising a base metal coated at least on one side with a coating composition of polymer bitumen and, when required, impregnated with bituminous substances, said coating composition containing a mixture of bitumen and rubber in the ratio of bitumen to rubber of between 17:3 and ~37~:~3 19:1. After the production of the sheeting the coatiny composition is cross-linked by radiation.
Any natural or synthetic rubber that is compatible - 2a -' ,: .
.
.
~L2~71~133 with bitumen and can be cross-linked by radiation, as for example, styrene-butadiene rubber and polybutadiene can be used as rubber.
Any conventional fleece, non-woven or woven fabric of glass fibres or heat-resistant synthetic fibres or even foils of metal or plastics that are non-degradable in the cross-linkage are suitable base materials. The fibrous webs are prefarably impregnated with bitumen, which can also be modified with a polymer capable of being cross-linked by radiation.
In the case of self-adhesive sheetings the base material is coated on both sides with the coating composition capable of being cross-linked. The surfaces can be sprinkled with mineral parting compounds or laminated with foils as is customary for roof sheetings depending on the intended use.
Bituminous hot melt adhesive- and cold-setting adhesive layers can be applied additionally prior to or after the radiation. However, it is also possible to coat the underside of the base material directly with the bituminous adhesive. It is true, this type of bituminous sheeting is known from DE-OS 30 42 943 (published 1st July 1982) but its upper protective coating consists of a vulcanized rubber mixture containing only a small portion of bitumen.
The present invention will be explained in greater detail by means of the following Examples~
Example 1 In a conventional plant for the production of ,!j j ~29~78~;~
bituminous roof sheetings, a polyester fibre fleece (230 per sq. m) is impregnated with a mixture of so parts by weight of distilled bitumen B 200 and 10 parts by weight of styrene-butadiene rubber and coated on both sides with a mixture of 63 parts by weigh~ o~ distilled bitumen B 200, 7 p~rts by weight of - 3a -. .
~LX~7~33 styrene-butadiene rubber and 30 parts by weiyht o~ powdered slate having a granular slze < 1oo~ m in a ~hickness of 1 mm each. The surface is sprinkled with slate cladding (granular size < 1.5 mm) and the underside with fine sand. The sheeting then passes through an electron acceleration and is irradiated with a radiation dose of 16 x 104 Gy. A sample was taken from both the irradiated material and the non-irradiated material.
The results have been compiled in Table 1 for comparison. The plasticity range (temperature range between the cold resis-tance of the sheeting according to DIN 52123 and the softening point (RUK) of the coating composition according to DIN 52011) has been extended by the radiation in the two directions ana has increased by 70 K. The softening point lies above that of the conventional compositions modified with olefin.
Table 1 prior to the after the radiation radiation softening point (RuX) of the coaOting com-position ( C) 120 180 heat resistance 8f the sheeting up to ( C) 100 130 cold resistance of the sheeting down to (C) -30_ _ _-40 Example 2 ' Example 1 is repeated, the amount of styrene-butadi-ene rubber in both the impregnating composition and the coat-ing composition being replaced by the equal amount of polybu-tadiene. The results have been compiled in Table 2 for com-parison. The plasticity range has increased by 161 K and exceeds in the two directions the plasticity range of the irradiated sheeting according to Example 1.
~9i7~333 Table 2 prlor to the after the radiation radiation softening point (RuK) of the coaOing com-position ( C) 64 205 heat resistance 8f the sheeting up to ( C) 40 130 cold resistance of the sheeting down to (C) -30 -50 The roof sheetings according to the present inven-tion as described in the Examples 1 and 2 are outstandingly suitable for bonding with a hot bitumen or a bituminous cold-setting adhesive.
Example 3 A cold-setting self-adhesive roof sheeting is pro-duced from a polyester non-woven fleece (230 g per sq. m) impregnated with a blown bitumen 85/40. On the surface said fleece is coated with a coating compound of 1 mm thickness according to Example 1 and on the underside it is coated in a thickness of 1 mm with a composition consisting of 65 parts by weight of distilled bitumen B 200, 11 parts by weight of syn-~0 thetic rubber, 8 parts by weight of colophony and 3 parts byweight of an extender. The surface is the sprinkled as in Example 1 and the underside is then covered with a siliconized paper. As described in Example 1 the sheeting is irradiated with 8 x 104 Gy while the adhesive force of the underside of the sheeting does not decrease. The cold-setting adhesive thus remains unchanged during the radiation.
Example 4 A bituminous water-roof sheeting is produced from a glass fibre fleece (100 g per sq. m), which is impregnated as in Example 2 and coated on the surface. The underside is pro-vided with a layer from à blown bitumen 100/30 in a thickness of 1 mm. The surface is then sprinkled with slate cladding 83~
` `
and the underside is covered wlth talc. Like an untreated bituminous waterproof sheeting, the sheeting irradiated with 6 x 104 Gy can be welded to any conventional base. The hot melt adhesive thus is not affected by the radiation.
, , :
~ - 6 -:
situminous sheetings for sealing roofs comprise a base material, which, when re~uire~, :Is impregnated, such as sheets, fleeces or fabrics, and is coated wlth a bituminous coating composition at least on one side. The surface of the coating composition is provided with a parting agent which prevents the sheeting from adhering upon being rolled up and, when required, also can carry out other functions, as for example, the protection against ultraviolet radiation ln the uppermost layer of the roof sealing.
To improve the mechanical properties, the bituminous coating compositions are modified with bitumen-compatible polymers. They cause an increase of the plasticity range and of the viscosity of the melt. The addition of rubber and rub~
ber-like polymers simultaneously causes an improvement of the cold flexibility in addition to the increase of the softening point. Furthermore, the elasticity of the bituminous sub-stance is also increased. The lower resistance to aging of20 these double bond-containing polymers, particularly to UV
radiation, is a disadvantage. The addition of polyolefins, such as polyethylene, has a more favourable effect on the aging characteristics but an improvement of the cold flex-ibility is usually not attained and moreover the elasticity ls improved only slightly. The elasticity range of polymer bltu-men modified with elastomers lies approximately between 125 and -35C and for polymer bitumen modified wlth olefins it lies between approximately 150 and -15C, i.e., it is approxi-mately the same but shifted by approximately 25K. For the selection of a roof sea~ing sheeting this is just as important as the adhesive and welding characteristics or the resistance to chemicals and aging.
~k DD 215559 (Published 14th November 1984) proposes to improve the natural stability of bitumen mixtures by additions of radiation-cross-linked polymers, particularly of polyethylene, also at elevated temperatures. The degree of cross-linkage must be so selected that an adequate solubility of the cross-linked polymer in the bitumen is still attained since intensely cross-linked polymers must be regarded as fillers, which only slightly chan~e the properties of the bituminous substances. The molar weight of the polymer is increased by the cross-linkage. As is well known, this has a positive effect on the softening point but a negative effect on both the breaking point and the penetration : ref;
Polymermodifizierte Bitumen, Eigenschaften - Herstellung -PrUfungsmethoden - Anwendung, Authors: Walter FUrst and Friedrich Crott, Date: 1986, Source: Stra~e und Autobahn (journal) issue 1, pages 3 to 9.
As is evident from the description the bitumen mixtures according to the present invention are intended primarily for road construction. This is also evident from the selection of bitumens in the Examples which names the bitumen types B
50 and B 80, which are unsuitable as roof sheeting coating compositions.
Thus, the present invention provides a roof sheeting that is resistant to aging and is not- and cold~sealing with ~5 bituminous adhesive substances and has an extended plasticity range including that of the bitumen modified with polyolefin and that modified with rubber.
According to the present invention there is provided a roof sheeting comprising a base metal coated at least on one side with a coating composition of polymer bitumen and, when required, impregnated with bituminous substances, said coating composition containing a mixture of bitumen and rubber in the ratio of bitumen to rubber of between 17:3 and ~37~:~3 19:1. After the production of the sheeting the coatiny composition is cross-linked by radiation.
Any natural or synthetic rubber that is compatible - 2a -' ,: .
.
.
~L2~71~133 with bitumen and can be cross-linked by radiation, as for example, styrene-butadiene rubber and polybutadiene can be used as rubber.
Any conventional fleece, non-woven or woven fabric of glass fibres or heat-resistant synthetic fibres or even foils of metal or plastics that are non-degradable in the cross-linkage are suitable base materials. The fibrous webs are prefarably impregnated with bitumen, which can also be modified with a polymer capable of being cross-linked by radiation.
In the case of self-adhesive sheetings the base material is coated on both sides with the coating composition capable of being cross-linked. The surfaces can be sprinkled with mineral parting compounds or laminated with foils as is customary for roof sheetings depending on the intended use.
Bituminous hot melt adhesive- and cold-setting adhesive layers can be applied additionally prior to or after the radiation. However, it is also possible to coat the underside of the base material directly with the bituminous adhesive. It is true, this type of bituminous sheeting is known from DE-OS 30 42 943 (published 1st July 1982) but its upper protective coating consists of a vulcanized rubber mixture containing only a small portion of bitumen.
The present invention will be explained in greater detail by means of the following Examples~
Example 1 In a conventional plant for the production of ,!j j ~29~78~;~
bituminous roof sheetings, a polyester fibre fleece (230 per sq. m) is impregnated with a mixture of so parts by weight of distilled bitumen B 200 and 10 parts by weight of styrene-butadiene rubber and coated on both sides with a mixture of 63 parts by weigh~ o~ distilled bitumen B 200, 7 p~rts by weight of - 3a -. .
~LX~7~33 styrene-butadiene rubber and 30 parts by weiyht o~ powdered slate having a granular slze < 1oo~ m in a ~hickness of 1 mm each. The surface is sprinkled with slate cladding (granular size < 1.5 mm) and the underside with fine sand. The sheeting then passes through an electron acceleration and is irradiated with a radiation dose of 16 x 104 Gy. A sample was taken from both the irradiated material and the non-irradiated material.
The results have been compiled in Table 1 for comparison. The plasticity range (temperature range between the cold resis-tance of the sheeting according to DIN 52123 and the softening point (RUK) of the coating composition according to DIN 52011) has been extended by the radiation in the two directions ana has increased by 70 K. The softening point lies above that of the conventional compositions modified with olefin.
Table 1 prior to the after the radiation radiation softening point (RuX) of the coaOting com-position ( C) 120 180 heat resistance 8f the sheeting up to ( C) 100 130 cold resistance of the sheeting down to (C) -30_ _ _-40 Example 2 ' Example 1 is repeated, the amount of styrene-butadi-ene rubber in both the impregnating composition and the coat-ing composition being replaced by the equal amount of polybu-tadiene. The results have been compiled in Table 2 for com-parison. The plasticity range has increased by 161 K and exceeds in the two directions the plasticity range of the irradiated sheeting according to Example 1.
~9i7~333 Table 2 prlor to the after the radiation radiation softening point (RuK) of the coaOing com-position ( C) 64 205 heat resistance 8f the sheeting up to ( C) 40 130 cold resistance of the sheeting down to (C) -30 -50 The roof sheetings according to the present inven-tion as described in the Examples 1 and 2 are outstandingly suitable for bonding with a hot bitumen or a bituminous cold-setting adhesive.
Example 3 A cold-setting self-adhesive roof sheeting is pro-duced from a polyester non-woven fleece (230 g per sq. m) impregnated with a blown bitumen 85/40. On the surface said fleece is coated with a coating compound of 1 mm thickness according to Example 1 and on the underside it is coated in a thickness of 1 mm with a composition consisting of 65 parts by weight of distilled bitumen B 200, 11 parts by weight of syn-~0 thetic rubber, 8 parts by weight of colophony and 3 parts byweight of an extender. The surface is the sprinkled as in Example 1 and the underside is then covered with a siliconized paper. As described in Example 1 the sheeting is irradiated with 8 x 104 Gy while the adhesive force of the underside of the sheeting does not decrease. The cold-setting adhesive thus remains unchanged during the radiation.
Example 4 A bituminous water-roof sheeting is produced from a glass fibre fleece (100 g per sq. m), which is impregnated as in Example 2 and coated on the surface. The underside is pro-vided with a layer from à blown bitumen 100/30 in a thickness of 1 mm. The surface is then sprinkled with slate cladding 83~
` `
and the underside is covered wlth talc. Like an untreated bituminous waterproof sheeting, the sheeting irradiated with 6 x 104 Gy can be welded to any conventional base. The hot melt adhesive thus is not affected by the radiation.
, , :
~ - 6 -:
Claims (8)
1. A roof sheeting of a base material coated at least on one side with a coating composition of polymer bitu-men which coating composition contains a mixture of bitumen and rubber in the ratio of bitumen to rubber of between 17:3 and 19:1 and which has been cross-linked by radiation after the production of the sheeting.
2. A roof sheeting according to claim 1, in which the bitumen/rubber mixture contains styrene butadiene.
3. A roof sheeting according to claim l, in which the bitumen/rubber mixture contains polybutadiene.
4. A roof sheeting according to claim 1, 2 or 3, in which the sheeting has been irradiated in an electron acceler-ator with a radiation dose of 6 x 104 to 16 x 104 Gy.
5. A roof sheeting according to claim 1, 2 or 3, in which the base material is impregnated with bituminous sub-stances.
6. A roof sheeting according to claim 1, 2 or 3, in which the base material is a fibrous web impregnated with a bitumen, which is modified with a polymer cross-linked by electron beams.
7. A roof sheeting according to claim 1, 2 or 3, in which the underside of the roof sheeting is provided with a bituminous hot melt adhesive.
8. A roof sheeting according to claim 1, 2 or 3, in which the underside of the roof sheeting is provided with a bituminous cold-setting adhesive.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3633647.5 | 1986-10-03 | ||
| DE19863633647 DE3633647A1 (en) | 1986-10-03 | 1986-10-03 | BITUMINOESE ROOF RAILWAY |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1297833C true CA1297833C (en) | 1992-03-24 |
Family
ID=6310945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000548479A Expired - Lifetime CA1297833C (en) | 1986-10-03 | 1987-10-02 | Bituminous roof sheeting |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4780362A (en) |
| EP (1) | EP0263248B1 (en) |
| JP (1) | JPS6399379A (en) |
| CN (1) | CN1013777B (en) |
| AT (1) | ATE48870T1 (en) |
| CA (1) | CA1297833C (en) |
| DD (1) | DD262465A5 (en) |
| DE (2) | DE3633647A1 (en) |
| ES (1) | ES2002687B3 (en) |
| GR (1) | GR880300079T1 (en) |
| HU (1) | HU201105B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1208156B (en) * | 1986-12-24 | 1989-06-06 | Danese Marco Nord Bitumi | COMPOSITE PANEL AND PROCEDURE TO FORM WATERPROOF COVERS. |
| GB2226764A (en) * | 1989-01-06 | 1990-07-11 | Fibredec Ltd | Safety surface |
| FR2701502B1 (en) * | 1993-02-11 | 1995-05-24 | Roger Vallon | Improved fire and flame resistance of cellulose and bitumen-based roofs. |
| DE29706868U1 (en) * | 1997-04-16 | 1998-08-13 | Dr. Kohl GmbH & Cie, Dachbelag- und Bautenschutzmittel-Fabrik, 46282 Dorsten | Bituminous welding membrane for sealing bridge structures, parking decks or the like. |
| DE19908586C1 (en) * | 1999-02-27 | 2000-10-26 | Villas Austria Gmbh Fuernitz | Sealing sheet comprises carrier layer with bituminous top and bottom layers on its opposite surfaces, with top cover layer provided with wetting agent which wets material of bottom cover layer |
| NL1012733C2 (en) * | 1999-07-29 | 2001-02-05 | Esha Holding B V | Flame-resistant roofing membrane. |
| US6696125B2 (en) | 2002-04-25 | 2004-02-24 | Polyglass, U.S.A. | Self-adhered modified bitumen roofing material |
| US8309211B2 (en) * | 2003-11-06 | 2012-11-13 | Building Materials Investment Corporation | Breathable non-asphaltic roofing underlayment |
| US20050126102A1 (en) * | 2003-12-15 | 2005-06-16 | Swann Raymond C. | Self-adhered roof system and components |
| US20060116449A1 (en) * | 2004-12-01 | 2006-06-01 | Fina Technology, Inc. | Bitumen/rubber compositions crosslinked with polythiomorpholines, polysulfides and/or mercaptobenzimidazole |
| US8323770B2 (en) * | 2005-06-17 | 2012-12-04 | Building Materials Investment Corporation | Breathable non-asphaltic roofing underlayment having tailorable breathability |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1400385A (en) * | 1971-05-30 | 1975-07-16 | Grace W R & Co | Preformed sheet-like structures |
| US4210693A (en) * | 1977-12-20 | 1980-07-01 | Dowdflor Corporation | Register emboss and method |
| JPS53129263A (en) * | 1977-04-19 | 1978-11-11 | Toshiba Corp | Production of chemical plating substrate |
| DE2922242C2 (en) * | 1979-05-31 | 1982-11-04 | Tajima Roofing Co., Ltd., Tokyo | Cover film |
| US4413019A (en) * | 1979-06-06 | 1983-11-01 | The Standard Products Company | Radiation curable adhesive compositions and composite structures |
| JPS5692906A (en) * | 1979-12-26 | 1981-07-28 | Yokohama Rubber Co Ltd:The | Ultraviolet-curable composition and its usage |
| US4333866A (en) * | 1980-06-16 | 1982-06-08 | Owens-Corning Fiberglas Corporation | Asphalt composition |
| US4440816A (en) * | 1980-07-14 | 1984-04-03 | Owens-Corning Fiberglas Corporation | Rubber-modified asphalt composition |
| DE3042943C2 (en) * | 1980-11-14 | 1987-01-29 | Phoenix Ag, 2100 Hamburg | Sealing membrane for roofs or similar |
| US4420524A (en) * | 1981-06-12 | 1983-12-13 | Owens-Corning Fiberglas Corporation | Bitumen, atactic polypropylene and propylene/ethylene copolymer compositions and water-proofing membranes using the same |
| DE3145266C2 (en) * | 1981-11-14 | 1985-08-22 | Fa. Carl Freudenberg, 6940 Weinheim | Roofing and waterproofing membrane |
| US4528241A (en) * | 1982-08-12 | 1985-07-09 | Owens-Corning Fiberglas Corporation | Chemically modified asphalts and glass fibers treated therewith |
| DD215559A1 (en) * | 1983-05-24 | 1984-11-14 | Akad Wissenschaften Ddr | BITUMEN COMPOUND |
| DD221002A1 (en) * | 1983-12-28 | 1985-04-10 | Isolier Erzeugnisse Veb | CORROSION BINDING |
| US4530652A (en) * | 1984-01-12 | 1985-07-23 | Buck Ollie G | Asphalt composition |
| US4600635A (en) * | 1985-04-17 | 1986-07-15 | W. R. Grace & Co. | Bitumen adhesive and waterproofing membranes containing same |
-
1986
- 1986-10-03 DE DE19863633647 patent/DE3633647A1/en not_active Withdrawn
-
1987
- 1987-07-17 DE DE8787110339T patent/DE3761215D1/en not_active Expired - Lifetime
- 1987-07-17 ES ES87110339T patent/ES2002687B3/en not_active Expired - Lifetime
- 1987-07-17 AT AT87110339T patent/ATE48870T1/en not_active IP Right Cessation
- 1987-07-17 EP EP87110339A patent/EP0263248B1/en not_active Expired
- 1987-08-31 CN CN87106092A patent/CN1013777B/en not_active Expired
- 1987-09-24 US US07/100,386 patent/US4780362A/en not_active Expired - Fee Related
- 1987-09-28 DD DD87307337A patent/DD262465A5/en not_active IP Right Cessation
- 1987-09-30 JP JP62244452A patent/JPS6399379A/en active Pending
- 1987-10-02 HU HU874447A patent/HU201105B/en not_active IP Right Cessation
- 1987-10-02 CA CA000548479A patent/CA1297833C/en not_active Expired - Lifetime
-
1988
- 1988-10-21 GR GR88300079T patent/GR880300079T1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HUT51316A (en) | 1990-04-28 |
| CN1013777B (en) | 1991-09-04 |
| EP0263248B1 (en) | 1989-12-20 |
| DD262465A5 (en) | 1988-11-30 |
| ATE48870T1 (en) | 1990-01-15 |
| DE3761215D1 (en) | 1990-01-25 |
| CN87106092A (en) | 1988-04-13 |
| EP0263248A1 (en) | 1988-04-13 |
| GR880300079T1 (en) | 1988-10-21 |
| HU201105B (en) | 1990-09-28 |
| ES2002687A4 (en) | 1988-10-01 |
| ES2002687B3 (en) | 1990-04-16 |
| DE3633647A1 (en) | 1988-04-14 |
| US4780362A (en) | 1988-10-25 |
| JPS6399379A (en) | 1988-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |